Answer:
For the significance level of 0.01, the critical value for the test statistic is 2.326.
Step-by-step explanation:
Null hypothesis: population mean equals 5.
Alternate hypothesis: population mean is less than 5.
The test is a one-tailed test because the alternate hypothesis is expressed using less than.
For a one-tailed test, the critical value of the test statistic for the significance level of 0.01 is 2.326.
Answer:
A. -3.5
Step-by-step explanation:
when adding a negative you subtract
so rewrite it as
1.5-5
which gives you -3.5
Answer:
Step-by-step explanation:
<u>7.5% less than 120 </u>
- 120 - 7.5% of 120 =
- 120(1 - 7.5/100) =
- 120*0.925 =
- 111
A. 7x
B. 8x-1
C. 6x+12
D. 3x +4
E. 13x-7
Answer:
1/3.
Step-by-step explanation:
The 2 events are independent so we multiply the 2 probabilities.
Prob(rolling an odd number) = 3/6 = 1/2.
Prob(rolling a number greater than 2) = 4/6 = 2/3.
The required probability = 1/2 * 2/3
= 2/6
= 1/3.
